Inverting The Bit Device Output - Mitsubishi Electric MELSEC iQ-R Series Programming Manual

Inverting the bit device output

FF
RnPCPU RnPCPU
RnCPU RnENCPU
(Process) (Redundant)
This instruction inverts the status of the specified device.
Ladder
(d)
FBD/LD
EN ENO
d
■Execution condition
Instruction
FF
Setting data
■Description, range, data type
Operand Description
(d) Inversion target device number
EN Execution condition
ENO Execution result
• In safety programs executed by the Safety CPU, only safety devices and safety labels of data types described in the table
can be used.
■Applicable devices
Operand Bit
X, Y, M, L,
SM, F, B, SB,
FX, FY
(d) 
• In safety programs executed by the Safety CPU, only the following safety devices and constants can be used.
Operand Bit
SA\X, SA\Y, SA\M, SA\SM, SA\B

(d)
Processing details
• This instruction inverts the status of the device specified by (d) on the rising edge of the execution command.
Device
Bit device
Bit-specified word device
RnSFCPU RnSFCPU
(Standard) (Safety)
Execution condition
Word
J\ T, ST, C, D, W, U\G, J\,
SD, SW, FD, R, U3E\(H)G
ZR, RD
  
Word
SA\T, SA\ST, SA\C, SA\D, SA\W, SA\SD

Device status
Before execution of the FF instruction
Off
On
0
1
ST
ENO:=FF(EN,d);
Range Data type
 Bit

Bit
 Bit
Double word
Z LT, LST, LZ
LC
  
After execution of the FF instruction
On
Off
1
0
Data type (label)
ANY_BOOL
BOOL
BOOL
Indirect Constant Others
specification (DY)
K, H E $
    
Constant
K, H

5 SEQUENCE INSTRUCTIONS
5.3 Output Instructions
5
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